January 4, 2021 Subject:
VNR vs CNC Concise Enciclopedia of Mathematics +suggesting to rescan some pages
Compared to the other encyclopedia wish a similar name "CRC Concise Encyclopedia of Mathematics" CRC is what I call a reference in alphabetical order,
VNR is a semi-superficial all throughout exploration of mathematics in short and dense chapters one beside the other that is possible to read from the first page to the last.
About the digital acquisition:
pages 316 380 587 602 are out of focus, nearly unreadable
I suggest to find this type of page acquisition (fortunately rare) algorithmically on all books